import Vue from 'vue'
import Router from 'vue-router'
import Login from '@/components/Login'
import Home from '@/components/Home'
import Welcome from '@/components/Welcome'
import Users from '@/components/user/Users'
import Rights from '@/components/power/Rights'
import Roles from '@/components/power/Roles'
import Cate from '@/components/goods/Cate'
import Params from '@/components/goods/Params'
import GoodsList from '@/components/goods/List'
import Add from '@/components/goods/Add'
import Order from '@/components/order/Order'
import Report from '@/components/report/Report'

Vue.use(Router)

const router = new Router({
  routes: [{
      path: '/',
      redirect: '/login'
    },
    {
      path: '/login',
      component: Login
    },
    {
      path: '/home',
      component: Home,
      redirect: '/welcome',
      children: [{
          path: '/welcome',
          component: Welcome
        },
        {
          path: '/users',
          component: Users
        },
        {
          path: '/rights',
          component: Rights
        },
        {
          path: '/roles',
          component: Roles
        },
        {
          path: '/categories',
          component: Cate
        },
        {
          path: '/params',
          component: Params
        },
        {
          path: '/goods',
          component: GoodsList
        },
        {
          path: '/goods/add',
          component: Add
        },
        {
          path: '/orders',
          component: Order
        },
        {
          path: '/reports',
          component: Report
        }
      ]
    }
  ]
})

//挂载路由导航守卫
router.beforeEach((to, from, next) => {
  //to表示将要访问的路径
  //from 代表从哪个路径跳转而来
  //next() 是一个函数，表示放行   next('/login')表示强行跳转

  if (to.path === '/login') return next();
  //获取token
  const tokenStr = window.sessionStorage.getItem('token');
  if (!tokenStr) {
    return next('/login')
  }
  next();
})

export default router
